Thwarted by ActionController::MethodNotAllowed

Are you running a rails app locally seeing this:

---

ActionController::MethodNotAllowed
Only get and post requests are allowed.
RAILS_ROOT: /Users/me/my_rails_project
ActionController::MethodNotAllowed (Only get and post requests are allowed.)

---

There are of course actual valid reasons this might be happening to you if you're doing something tricky, but if all you're trying to do is browse to a page (which is get request) and it's blowing up with this there may be a simple fix.

Stop script/server and start it again. Then refresh the page.

I've found that sometimes when I edit routes.rb and add a route, particularly if it's a resource, thinks get wonky and I get this error. Restarting script/server ended up fixing my problem when google yielded nothing for me.